Index: third_party/sqlite/src/test/snapshot2.test |
diff --git a/third_party/sqlite/src/test/snapshot2.test b/third_party/sqlite/src/test/snapshot2.test |
new file mode 100644 |
index 0000000000000000000000000000000000000000..41e555258b8c3455a4c8178f93c8d93b2a65fdf3 |
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+++ b/third_party/sqlite/src/test/snapshot2.test |
@@ -0,0 +1,200 @@ |
+# 2016 November 18 |
+# |
+# The author disclaims copyright to this source code. In place of |
+# a legal notice, here is a blessing: |
+# |
+# May you do good and not evil. |
+# May you find forgiveness for yourself and forgive others. |
+# May you share freely, never taking more than you give. |
+# |
+#*********************************************************************** |
+# This file implements regression tests for SQLite library. The focus |
+# of this file is the sqlite3_snapshot_xxx() APIs. |
+# |
+ |
+set testdir [file dirname $argv0] |
+source $testdir/tester.tcl |
+ifcapable !snapshot {finish_test; return} |
+set testprefix snapshot2 |
+ |
+# This test does not work with the inmemory_journal permutation. The reason |
+# is that each connection opened as part of this permutation executes |
+# "PRAGMA journal_mode=memory", which fails if the database is in wal mode |
+# and there are one or more existing connections. |
+if {[permutation]=="inmemory_journal"} { |
+ finish_test |
+ return |
+} |
+ |
+#------------------------------------------------------------------------- |
+# Check that it is not possible to obtain a snapshot immediately after |
+# a wal mode database with an empty wal file is opened. But it is after |
+# the file has been written, even by some other connection. |
+# |
+do_execsql_test 1.0 { |
+ PRAGMA journal_mode = wal; |
+ CREATE TABLE t1(a, b, c); |
+ INSERT INTO t1 VALUES(1, 2, 3); |
+ INSERT INTO t1 VALUES(4, 5, 6); |
+} {wal} |
+ |
+db close |
+do_test 1.1.1 { list [file exists test.db] [file exists test.db-wal] } {1 0} |
+ |
+sqlite3 db test.db |
+do_execsql_test 1.1.2 { SELECT * FROM t1 } {1 2 3 4 5 6} |
+ |
+do_test 1.1.3 { |
+ execsql BEGIN |
+ list [catch { sqlite3_snapshot_get_blob db main } msg] $msg |
+} {1 SQLITE_ERROR} |
+execsql COMMIT |
+ |
+do_test 1.1.4 { |
+ execsql { INSERT INTO t1 VALUES(7, 8, 9) } |
+ execsql BEGIN |
+ string length [sqlite3_snapshot_get_blob db main] |
+} 48 |
+execsql COMMIT |
+ |
+db close |
+do_test 1.2.1 { list [file exists test.db] [file exists test.db-wal] } {1 0} |
+ |
+sqlite3 db test.db |
+do_execsql_test 1.2.2 { SELECT * FROM t1 } {1 2 3 4 5 6 7 8 9} |
+ |
+do_test 1.2.3 { |
+ execsql BEGIN |
+ list [catch { sqlite3_snapshot_get_blob db main } msg] $msg |
+} {1 SQLITE_ERROR} |
+execsql COMMIT |
+ |
+do_test 1.2.4 { |
+ sqlite3 db2 test.db |
+ execsql { INSERT INTO t1 VALUES(10, 11, 12) } db2 |
+ execsql BEGIN |
+ string length [sqlite3_snapshot_get_blob db main] |
+} 48 |
+execsql COMMIT |
+db2 close |
+ |
+#------------------------------------------------------------------------- |
+# Simple tests for sqlite3_snapshot_recover(). |
+# |
+reset_db |
+do_execsql_test 2.0 { |
+ CREATE TABLE t1(x); |
+ PRAGMA journal_mode = wal; |
+ INSERT INTO t1 VALUES(1); |
+ INSERT INTO t1 VALUES(2); |
+} {wal} |
+ |
+do_test 2.1 { |
+ db trans { set snap [sqlite3_snapshot_get_blob db main] } |
+ sqlite3_db_config db NO_CKPT_ON_CLOSE 1 |
+ db close |
+ sqlite3 db test.db |
+ |
+ execsql {SELECT * FROM sqlite_master} |
+ execsql BEGIN |
+ sqlite3_snapshot_open_blob db main $snap |
+ execsql COMMIT; |
+ execsql { INSERT INTO t1 VALUES(3); } |
+} {} |
+ |
+do_test 2.2 { |
+ sqlite3_db_config db NO_CKPT_ON_CLOSE 1 |
+ db close |
+ sqlite3 db test.db |
+ |
+ execsql {SELECT * FROM sqlite_master} |
+ execsql BEGIN |
+ list [catch { sqlite3_snapshot_open_blob db main $snap } msg] $msg |
+} {1 SQLITE_BUSY_SNAPSHOT} |
+ |
+do_test 2.3 { |
+ execsql COMMIT |
+ sqlite3_snapshot_recover db main |
+ execsql BEGIN |
+ sqlite3_snapshot_open_blob db main $snap |
+ execsql { SELECT * FROM t1 } |
+} {1 2} |
+ |
+do_test 2.4 { |
+ execsql COMMIT |
+ execsql { SELECT * FROM t1 } |
+} {1 2 3} |
+ |
+do_test 2.5 { |
+ execsql { PRAGMA wal_checkpoint } |
+ sqlite3_db_config db NO_CKPT_ON_CLOSE 1 |
+ db close |
+ sqlite3 db test.db |
+ |
+ sqlite3_snapshot_recover db main |
+ execsql BEGIN |
+ list [catch { sqlite3_snapshot_open_blob db main $snap } msg] $msg |
+} {1 SQLITE_BUSY_SNAPSHOT} |
+ |
+#------------------------------------------------------------------------- |
+# Check that calling sqlite3_snapshot_recover() does not confuse the |
+# pager cache. |
+reset_db |
+do_execsql_test 3.0 { |
+ PRAGMA journal_mode = wal; |
+ CREATE TABLE t1(x, y); |
+ INSERT INTO t1 VALUES('a', 'b'); |
+ INSERT INTO t1 VALUES('c', 'd'); |
+} {wal} |
+do_test 3.1 { |
+ sqlite3 db2 test.db |
+ execsql { INSERT INTO t1 VALUES('e', 'f') } db2 |
+ db2 close |
+ sqlite3_snapshot_recover db main |
+} {} |
+do_execsql_test 3.2 { |
+ SELECT * FROM t1; |
+} {a b c d e f} |
+ |
+#------------------------------------------------------------------------- |
+# Check that sqlite3_snapshot_recover() returns an error if it is called |
+# with an open read-transaction. Or on a database that does not exist. Or |
+# on the temp database. Or on a db that is not in wal mode. |
+# |
+do_test 4.1 { |
+ sqlite3_snapshot_recover db main |
+} {} |
+do_test 4.2 { |
+ execsql { |
+ BEGIN; |
+ SELECT * FROM sqlite_master; |
+ } |
+ list [catch { sqlite3_snapshot_recover db main } msg] $msg |
+} {1 SQLITE_ERROR} |
+do_test 4.3 { |
+ execsql COMMIT |
+ sqlite3_snapshot_recover db main |
+} {} |
+do_test 4.4 { |
+ list [catch { sqlite3_snapshot_recover db aux } msg] $msg |
+} {1 SQLITE_ERROR} |
+do_test 4.5 { |
+ forcedelete test.db2 |
+ execsql { |
+ ATTACH 'test.db2' AS aux; |
+ PRAGMA aux.journal_mode = wal; |
+ CREATE TABLE aux.t2(x, y); |
+ } |
+ list [catch { sqlite3_snapshot_recover db aux } msg] $msg |
+} {0 {}} |
+do_test 4.6 { |
+ list [catch { sqlite3_snapshot_recover db temp } msg] $msg |
+} {1 SQLITE_ERROR} |
+do_test 4.7 { |
+ execsql { |
+ PRAGMA aux.journal_mode = delete; |
+ } |
+ list [catch { sqlite3_snapshot_recover db aux } msg] $msg |
+} {1 SQLITE_ERROR} |
+ |
+finish_test |